For tumors affecting the bottom half of the bile duct, the cancer is removed with a Whipple operation. For tumors in the top half of the bile duct, surgical treatment often requires removal of the tumor together with a liver resection (removal) in an attempt to provide a surgical cure.
How long for plastic water bottle to decompose? An average time for a plastic bottle to biodegrade fully is approximately 450-1000 years. However, there are many different kinds of plastic in the world, most commonly the haâ¦rd and reusable ones, which take a longer time, and the soft and non-reusable ones, which take a shorter time.
Glass doesnt decompose. It does take a long time to become a solid, but glass now will be glass in millions of years. Some types of glass can be made to decompose by adding ch â¦ emicals similar to what etching does to glass.n average time for a plastic bottle to biodegrade fully is approximately 450-1000 years. However, there are many different kinds of plastic in the world, most commonly the ha â¦ rd and reusable ones, which take a longer time, and the soft and non-reusable ones, which take a shorter time.